Processing of your last operation resulted in an exception.
What to do next?
Returns to the state just before you run the operation which caused the exception. This will allow you to correct the entered data and start again or you can complete your work using any alternative operations.
Re-starts the operation that lastly failed. Makes sense only if you respond to the exception state, such as insert a floppy disk in the drive.
Leaves the current state and goes to the home page of the operation. If fails the home page of the operation then goes to the application home page. This way you possibly lose unsaved data.